It's not that I dislike CCS, I love it in fact, except I don't think it would be nearly as good done now as it was then. Take Sailor Moon Crystal as an example. They removed the 90's quirkiness and used a lot of digital shortcuts which made it feel really cheap.

CCS is perfect the way it is. I wouldn't mind another movie or something though. Maybe one that takes place when they are in middle school, like the manga leaves off.

NOT Cardcaptor Sakura: Why is everyone typing this. If they re-made to match the manga would be trash in addition to being only 12-24 episodes long.

Most of these are going to be series I either liked and had issues with or the issues plagued a series that could have been good/great and a re-make could do this.

Azumanga Diaoh: Make this 6 episodes or add character growth, as this show was 26 episodes and the only thing about the characters that changed where two of their hairstyles. The jokes were repeated over and over and drove into the ground.

Bartender: Suffered from being to long 4 episodes would have been ideal 6 would have been okay, making it 11 was not.

Charlotte: Not sure how to fix this show as it is so broken. Just burning it to the ground would be an improvement.

Fate/Stay Night 2006: Please make this watch-able

Fruit Basket: Would love a real ending.

Gangsta: Make drugs behave even remotely how they do in real life. Fix the plot as well as add something that even resembles an ending.

Gintama: The Final Chapter - Be Forever Yorozuya, Gintama Movie 2: For a movie ranked #6 on MAL this had a lot of issues. The first fifteen minutes needed to be condensed. The time travel mechanic would need to be looked into farther detail to add to the plot as the movie was pure pandering garbage, that become horribly inconsistent in the last 25 minutes. The movie may have needed to make this just another dimension, as it handed this time travel very poorly as well as it didn't explore it in any many other than a plot device. See the Haruhi movie for a good example of this.

NIchijou: This was like watching a comdian who never edited their performance and told 2 good joke and then 18 bad ones. Do you laugh at the good ones yes, but is worth sitting through 18 bad ones not at all.

Plastic Memories: A re-make without fan service, and moe blobs could turn this into a real thought provoking show about what it means to be human. Do robots that behave like humans matter, the issues with human morality and the like. This could have been a different take on the subject than Time of Eve.

rosairo vampire. say true to the manga.
seikrei. for fucks sake, give us a real second season.
ghost in the shell. just the graphics. art style is fine, but i want cleaner graphics and higher frame rate.